197240449 has 4 divisors (see below), whose sum is σ = 225417664. Its totient is φ = 169063236.

The previous prime is 197240447. The next prime is 197240467. The reversal of 197240449 is 944042791.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 197240449 - 2¹ = 197240447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197240447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14088597 + ... + 14088610.

It is an arithmetic number, because the mean of its divisors is an integer number (56354416).

Almost surely, 2^197240449 is an apocalyptic number.

It is an amenable number.

197240449 is a deficient number, since it is larger than the sum of its proper divisors (28177215).

197240449 is an equidigital number, since it uses as much as digits as its factorization.

197240449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28177214.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 197240449 is about 14044.2318764680. The cubic root of 197240449 is about 582.1014228286.

The spelling of 197240449 in words is "one hundred ninety-seven million, two hundred forty thousand, four hundred forty-nine".